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Step By Step Answers with Explanation

2. The horizontal reaction at point B

3. The vertical reaction at point B

The equation for the sum of forces in the horizontal direction is:

∑F_x = 0

This means that the sum of all of the forces acting on the object in the vertical direction must equal zero. In this case, there are three forces acting on the object in the vertical direction:

1. The weight of the rod A8

where:

• R_y is the vertical reaction at point B

R_x = 0

This equation tells us that the horizontal reaction at point B is zero.

To find the resultant force acting on the rod A8, we can use the Pythagorean theorem. The resultant force is the vector sum of the horizontal and vertical reactions at point B.

The Pythagorean theorem is:

• R_y is the vertical reaction at point B

In this case, the horizontal reaction at point B is zero. Therefore, the equation for the resultant force is:

The direction of the resultant force can be found using the arctangent function. The arctangent function is defined as follows:

tan(θ) = R_y / R_